
\begin{tabular}{lcccc}
   \toprule
                      & Rad. Nat. (Avg) & PNV (Avg)     & PP (Avg)        & PSOE (Avg)\\
                      & (1)             & (2)           & (3)             & (4)\\
   \midrule 
   Signal strength    & 0.0991$^{***}$  & -0.0035       & -0.0569$^{***}$ & -0.0083\\
                      & (0.0045)        & (0.0466)      & (0.0188)        & (0.0172)\\
                      &                 &               &                 &  \\
   Observations       & 228             & 228           & 228             & 228\\
   R$^2$              & 0.59381         & 0.63867       & 0.76935         & 0.68170\\
   Within R$^2$       & 0.38031         & 0.43048       & 0.45447         & 0.66431\\
                      &                 &               &                 &  \\
   prov fixed effects & $\checkmark$   & $\checkmark$ & $\checkmark$   & $\checkmark$\\
   \bottomrule
\end{tabular}


